Nut-lock



Z. P. JONES.

(No Model.)

NUT LOOK.

Patented Apr. 5, 1887.

INVHNTOR WITNESSES A d/wd ATTORNEYS.

UNITED STATES PATENT OFFICE.

ZACHARIAH F. JONES, OF SCOTTSVILLE, VIRGINIA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 360,699, dated April 5,1887.

Application fllcdscptemberilfl, 1886. Serial No. 214,286. (No model.)

ing had to the accompanying drawings, in

which- Figure 1 is a side view of a part of a railjoint having myimproved nut-lock, shown in its adaptation to two adjacent bolts andnuts. Fig. 2 is a perspective view of the improvement as applied to asingle bolt and nut, the parts being shown in position to lock the nut.Fig. 3 is a perspective front view of the locking-plate. Fig. 4 is aperspective rear view of such plate. Fig. 5 is a perspective view of thesecuring-plate; and Fig. 6 is a front View of my improvement, the nutbeing removed and the locking-plate being shown in full lines inposition for application to and removal from the bolt and in dottedlines in position to lock to the bolt.

The invention consists in certain features of construction and novelcombinations of parts, as will be described.-

The locking-plate A is adapted,when properly arranged, to lock the nut Bfrom turning independently of said plate. This is preferably attained byforming the plate with a flange, a, to project alongside of the nut.Through the plate I form an opening, 1, adapted to fit over a bolt, 0,and such opening is contracted or reduced in width toward one end at 2,its main portion 3 being of sufficient size to fit easily over the bolt,while such part 2 is made of less width than the diameter of the bolt.By this construction, when in use, the plate A is fitted over a bolt andthe nut is properly turned on the bolt in part 3 of opening 1. When theparts are so arranged and it is desired to lock the hot, the plate Ashould be struck by hammer or other suitable implement on its flangedend with sufiicient force to drive it transversely of the bolt in suchmanner that it will flatten the bolt at diametrically-opposite points,and such flattened portions will rest in the narrowed portion 2 of theopening 1. This operation will Figs. 1 and 2.

bring the flange a alongside the nut, so that the latter will be heldfrom turning, while the plate A will be locked from turning on the boltby the latters being flattened and fitting the contracted portion ofopening 1. Thus it will be seen that the nut and bolt are locked so thatone cannot be moved independently of the other as long as the nut, bolt,and lockingplate are in the relative position shown in To provide for sosecuring the parts when the nut is intended to be turned up againstwood, the locking plate may be provided with a screw-opening, 4, throughwhich a screw may be passed into the wood when the plate A is adjustedinto position for locking the nut and bolt. Where, however, the objectto be secured by the nut is metal, I prefer to use the securing-plate D,which has an opening, (I, to fit over the bolt and a portion orportions, 5, to turn up alongside the flanged end of the plate A whenthe nut is locked. This securing-plate is provided with a rib orprojection, 6, and the lockingplate has a groove, 7, which fits overthis projection and preserves the relation between the locking "andsecuring plates, so that the parts 5 will be retained in proper positionfor turning up against the locking-plate. Except for this groove andrib, the lockingplate might be turned by the friction of the nut at aright or other angle to the securing-plate, whereas the said groove andrib secure the parts in line, as is desired.

It will be noticed that the flange a of the locking-plate is arranged atright angles with the direction of length of the opening 1.

The operation is as follows: The lockingplate is placed over aunt, andthe nut is turned home against the locking-plate, which is then drivenlongitudinally to bring its flange a against the side of the nut and toflatten the bolt by the converging portion of opening 1.

Vhen used against wood, a screw is now passed through opening 4 into thewood. When used against metal, the securing-plate is turned up at 5alongside the locking-plate. (Such securing-plate has been previouslyapplied, as shown.)

In the construction shown in Fig. 1 the securing-plate and locking-plateneed not be provided the one with rib 6 and the other with groove 7, asin such case the plates cannot turn out ot'line with each other.

Having thus described my invention, what I claim as new is 1. Thecombination, with the lockingplate having an opening contracted orreduced in Width toward one end, of a securing-plate having an openingformed to fit over the bolt and a portion adapted to be turned alongsidethe locking-plate, substantially as described, and for the purposesspecified.

2. The improved nut-loek herein described, consisting of thelocking-platehaving an opening contracted or reduced in width toward ingwitnesses.

Z. F. JONES. Vituesses:

P. B. TURPIN, CHAS. A. lnrrrr,

